The purpose of this study is to evaluate different concentrations and formulations of LY3074828 compared to placebo ("dummy drug").

The study will consist of 2 parts: Part A and Part B. Screening is required within 28 days prior to the start of each study part. For each participant in Part A and Part B, the total duration of the clinical trial will be approximately 16 weeks, including screening.

Inclusion Criteria:

- Have venous access sufficient to allow for blood sampling and administration of investigational product

Exclusion Criteria:

• Must not have an average weekly alcohol intake that exceeds 28 units per week (males) and 21 units per week (females)
• Must not show evidence of active or latent tuberculosis (TB)
• Must not have received live vaccine(s) (including attenuated live vaccines and those administered intranasally) within 1 month of screening or intend to receive during the study
• Must not be immunocompromised
• Must not have known hypersensitivity to hyaluronidases
• Must not have received treatment with biologic agents (e.g. monoclonal antibodies, including marketed drugs) within 3 months or 5 half-lives (whichever is longer) prior to dosing
• Must not have significant allergies to humanized monoclonal antibodies
• Must not have clinically significant multiple or severe drug allergies, intolerance to topical corticosteroids, or severe post treatment hypersensitivity reactions
• Must not have had lymphoma, leukemia, or any malignancy within the past 5 years except for basal cell or squamous epithelial carcinomas of the skin that have been resected with no evidence of metastatic disease for 3 years
• Must not have had breast cancer within the past 10 years